./Falkon-3.0.1.AppImage 

** (falkon:2260): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-7AlFLjs8LV: Connection refused
QApplication: invalid style override passed, ignoring it.
Could not find QtWebEngineProcess
[2260:2260:0526/143944.638280:FATAL:zygote_host_impl_linux.cc(182)] Check failed: ReceiveFixedMessage(fds[0], kZygoteBootMessage, sizeof(kZygoteBootMessage), &boot_pid). 
#0 0x7f8ee06540a5 <unknown>
#1 0x7f8ee0669eca <unknown>
#2 0x7f8edfcacfc3 <unknown>
#3 0x7f8edfcabc3b <unknown>
#4 0x7f8edfcac219 <unknown>
#5 0x7f8edf8ef93a <unknown>
#6 0x7f8edf8f4e76 <unknown>
#7 0x7f8edf412600 <unknown>
#8 0x7f8edf413b25 <unknown>
#9 0x7f8edf3a7a61 QtWebEngineCore::BrowserContextAdapter::defaultContext()
#10 0x7f8ee535d218 QWebEngineProfile::defaultProfile()
#11 0x7f8ee569de78 MainApplication::MainApplication()
#12 0x00000040358d main
#13 0x7f8eda21c830 __libc_start_main
#14 0x0000004038d5 <unknown>

Received signal 6
#0 0x7f8ee06540a5 <unknown>
#1 0x7f8edf395141 <unknown>
#2 0x7f8ee065443d <unknown>
#3 0x7f8eda2314b0 <unknown>
#4 0x7f8eda231428 gsignal
#5 0x7f8eda23302a abort
#6 0x7f8ee0653dc5 <unknown>
#7 0x7f8ee066a1ed <unknown>
#8 0x7f8edfcacfc3 <unknown>
#9 0x7f8edfcabc3b <unknown>
#10 0x7f8edfcac219 <unknown>
#11 0x7f8edf8ef93a <unknown>
#12 0x7f8edf8f4e76 <unknown>
#13 0x7f8edf412600 <unknown>
#14 0x7f8edf413b25 <unknown>
#15 0x7f8edf3a7a61 QtWebEngineCore::BrowserContextAdapter::defaultContext()
#16 0x7f8ee535d218 QWebEngineProfile::defaultProfile()
#17 0x7f8ee569de78 MainApplication::MainApplication()
#18 0x00000040358d main
#19 0x7f8eda21c830 __libc_start_main
#20 0x0000004038d5 <unknown>
  r8: 00007ffe3eb34680  r9: 00007f8ee5ca1900 r10: 0000000000000008 r11: 0000000000000206
 r12: 00007ffe3eb34450 r13: 00000000000000aa r14: 00007ffe3eb34680 r15: 00007ffe3eb34df0
  di: 00000000000008d4  si: 00000000000008d4  bp: 00007f8edae66140  bx: 00007ffe3eb34bd0
  dx: 0000000000000006  ax: 0000000000000000  cx: 00007f8eda231428  sp: 00007ffe3eb342e8
  ip: 00007f8eda231428 efl: 0000000000000206 cgf: 002b000000000033 erf: 0000000000000000
 trp: 0000000000000000 msk: 0000000000000000 cr2: 0000000000000000
[end of stack trace]
Calling _exit(1). Core file will not be generated.